Programming Guide » History » Version 13
chin-yeh, 09/21/2011 03:23 PM
| 1 | 2 | chin-yeh | {{toc}} |
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| 2 | |||
| 3 | 1 | chin-yeh | h1. Programming Guide |
| 4 | 2 | chin-yeh | |
| 5 | Describes how to integrate the mPay into online mall. |
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| 6 | |||
| 7 | 11 | chin-yeh | *Steps-by-steps:* |
| 8 | # First, refer to the [[Programming_Guide#Generate-Redirect-URL|Generate Redirect URL]] section on how to generate the redirect URL |
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| 9 | # And then, include the method, [[Programming_Guide#Capture-Payment-Status|Capture Payment Status]] in the return/receipt page to capture & persist the payment status |
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| 10 | 12 | chin-yeh | # Finally, query the [[Specification#Tables-Used|MPAY_INTERFACE]] table to get the payment status. |
| 11 | 11 | chin-yeh | |
| 12 | 4 | chin-yeh | *Demo application:* |
| 13 | * Generate Redirect URL (for hosted payment form) |
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| 14 | > http://192.168.2.68/ecosway/mpay-sample/payment_form.html |
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| 15 | 5 | chin-yeh | * Query Payment Status: |
| 16 | 4 | chin-yeh | > http://192.168.2.68/ecosway/mpay-sample/query.html |
| 17 | 3 | chin-yeh | |
| 18 | 2 | chin-yeh | h2. Source files |
| 19 | |||
| 20 | > Get the source files from [[wiki#SCM|SCM]]. |
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| 21 | |||
| 22 | *Files:* |
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| 23 | * my.com.eCosway.mpay |
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| 24 | ** Commons - list of common constant |
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| 25 | ** MpayInterfaceUtils - an utility to perform data persistence related operation |
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| 26 | ** MpayPaymentUtils - the mPay APIs |
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| 27 | ** MpayProperties - data model of the mPay properties |
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| 28 | ** PaymentRequest - data model of the mPay's payment request |
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| 29 | ** PaymentResponse - data model of the mPay's payment response |
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| 30 | * resources.properties.mpay |
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| 31 | ** mpay.properties - the application properties file |
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| 32 | 8 | chin-yeh | * source file of demo application (JSP): |
| 33 | ** mpay-sample folder |
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| 34 | 5 | chin-yeh | |
| 35 | h2. Generate Redirect URL |
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| 36 | |||
| 37 | 6 | chin-yeh | Generates the URL which will be used to redirect user to the mPay's hosted payment form. |
| 38 | |||
| 39 | 9 | chin-yeh | * *Method Signature:* |
| 40 | <pre> |
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| 41 | <code class="JAVA"> |
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| 42 | public static Map<String, String> genRedirectFormData(String orderNo, |
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| 43 | Date txnDate, String amount, String returnUrl, String locale, |
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| 44 | PaymentMethod paymentMethod) |
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| 45 | </code> |
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| 46 | </pre> |
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| 47 | 10 | chin-yeh | * *Demo:* |
| 48 | ** [[Programming Guide]] |
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| 49 | 6 | chin-yeh | |
| 50 | 5 | chin-yeh | h3. Input Parameters |
| 51 | |||
| 52 | 6 | chin-yeh | * *orderNo* - the unique order number |
| 53 | * *txtDate* - the transaction date |
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| 54 | * *amount* - the transaction amount |
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| 55 | * *returnUrl* - mPay will redirect the user to this URL after made the payment |
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| 56 | * *locale* - the display language of the payment form |
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| 57 | * *paymentMethod* - the payment method, e.g. _CUP_, _Alipay_ |
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| 58 | |||
| 59 | h3. Output Parameters |
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| 60 | 1 | chin-yeh | |
| 61 | 7 | chin-yeh | Use the returned key-pair values to construct the *HTML form*. |
| 62 | 1 | chin-yeh | |
| 63 | 8 | chin-yeh | Due to the limit of the length of a URL, the recommended HTTP method is *POST*. This is because extremely long URL will not work in most popular browsers and most importantly the length of the query string is unknown. |
| 64 | 7 | chin-yeh | |
| 65 | *Returned key-pair values:* |
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| 66 | * *form_action* - the URL of the hosted payment form. To be placed in the *action* attribute of the form |
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| 67 | * *encmsg* - the encrypted message. To be placed in the input element |
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| 68 | * *sigmsg* - the signed message. To be placed in the input element |
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| 69 | * *certserial* - the serial number of the certificate. To be placed in the input element |
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| 70 | |||
| 71 | 5 | chin-yeh | h3. Code Snippets |
| 72 | 1 | chin-yeh | |
| 73 | 7 | chin-yeh | <pre> |
| 74 | <code class="JAVA"> |
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| 75 | <body> |
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| 76 | 1 | chin-yeh | |
| 77 | 7 | chin-yeh | <% |
| 78 | String orderNo = request.getParameter("order_no"); |
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| 79 | String txnDate = request.getParameter("txn_date"); |
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| 80 | String amount = request.getParameter("amount"); |
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| 81 | String returnUrl = request.getParameter("return_url"); |
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| 82 | String locale = request.getParameter("locale"); |
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| 83 | String paymentMethod = request.getParameter("payment_method"); |
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| 84 | |||
| 85 | Date transactionDate = new SimpleDateFormat("yyyyMMddHHmmss").parse(txnDate); |
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| 86 | PaymentMethod cardType = PaymentMethod.valueOf(paymentMethod); |
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| 87 | |||
| 88 | Map<String, String> formData = MpayPaymentUtils.genRedirectFormData( |
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| 89 | orderNo, |
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| 90 | transactionDate, |
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| 91 | amount, |
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| 92 | returnUrl, |
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| 93 | locale, |
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| 94 | cardType); |
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| 95 | %> |
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| 96 | |||
| 97 | <p> |
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| 98 | Redirecting you to the mPay payment form, it may takes up to 1 minute... |
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| 99 | 1 | chin-yeh | </p> |
| 100 | 7 | chin-yeh | |
| 101 | 9 | chin-yeh | <form name="form1" method="post" action="<%= formData.get("form_action") %>"> |
| 102 | 7 | chin-yeh | <input type=hidden name=encmsg value="<%=formData.get("encmsg")%>"/> |
| 103 | <input type=hidden name=sigmsg value="<%=formData.get("sigmsg")%>"/> |
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| 104 | <input type=hidden name=certserial value="<%=formData.get("certserial")%>"/> |
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| 105 | </form> |
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| 106 | |||
| 107 | <script language="javascript"> |
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| 108 | |||
| 109 | function submitForm(){ |
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| 110 | document.form1.submit(); |
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| 111 | } |
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| 112 | |||
| 113 | window.onload=submitForm ; |
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| 114 | |||
| 115 | </script> |
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| 116 | |||
| 117 | </body> |
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| 118 | </code> |
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| 119 | </pre> |
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| 120 | |||
| 121 | 13 | chin-yeh | h2. Capture Payment Status |
| 122 | |||
| 123 | *This method must be invoked in the very beginning of the receipt page.* |
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| 124 | |||
| 125 | The main purpose of this method is to parse the payment response (which returned by mPay) and then update the payment status for the corresponding order. |
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| 126 | |||
| 127 | * *Method Signature:* |
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| 128 | <pre> |
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| 129 | <code class="JAVA"> |
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| 130 | public static String parsePaymentResponse(Connection connection, HttpServletRequest httpRequest) |
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| 131 | </code> |
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| 132 | </pre> |
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| 133 | |||
| 134 | h3. Input Parameters |
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| 135 | |||
| 136 | * *connection* - an established database connection |
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| 137 | * *httpRequest* - the HttpServletRequest object. It can be obtained in the JSP or servlet |
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| 138 | |||
| 139 | |||
| 140 | h3. Output Parameters |
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| 141 | |||
| 142 | The returned value is the *order number* of the transaction. |
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| 143 | |||
| 144 | h3. Code Snippets |
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| 145 | |||
| 146 | <pre> |
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| 147 | <code class="JAVA"> |
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| 148 | <% |
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| 149 | Connection connection = null; |
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| 150 | String orderNo = ""; |
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| 151 | try { |
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| 152 | connection = createDbConnection("java:/DB2DS"); |
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| 153 | orderNo = MpayPaymentUtils.parsePaymentResponse(connection, request); |
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| 154 | } catch(Exception ex) { |
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| 155 | throw ex; |
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| 156 | } finally { |
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| 157 | if (connection != null) { |
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| 158 | connection.close(); |
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| 159 | } |
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| 160 | } |
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| 161 | |||
| 162 | %> |
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| 163 | </code> |
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| 164 | </pre> |
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| 165 | |||
| 166 | 7 | chin-yeh | |
| 167 | 1 | chin-yeh | h2. Query Payment Status |
| 168 | |||
| 169 | 10 | chin-yeh | Queries the payment status of the submitted transaction. |
| 170 | |||
| 171 | * *Method Signature:* |
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| 172 | <pre> |
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| 173 | <code class="JAVA"> |
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| 174 | public static PaymentResponse queryPaymentStatus(String orderNo) |
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| 175 | </code> |
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| 176 | </pre> |
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| 177 | * *Demo:* |
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| 178 | ** [[Programming Guide]] |
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| 179 | |||
| 180 | 1 | chin-yeh | h3. Input Parameters |
| 181 | |||
| 182 | 10 | chin-yeh | orderNo - the order number of the submitted transaction |
| 183 | |||
| 184 | |||
| 185 | 1 | chin-yeh | h3. Output Parameters |
| 186 | |||
| 187 | 10 | chin-yeh | The fields of the returned object, *PaymentResponse*: |
| 188 | * *merchantId* - the merchant ID |
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| 189 | * *merchantTId* - the merchant terminal ID |
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| 190 | * *orderNo* - the order number |
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| 191 | * *systemDate* - the system date of mPay |
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| 192 | * *refNo* - the transaction ID of mPay |
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| 193 | * *amount* - the settlement amount |
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| 194 | * *currencyCode* - the currency of the settlement amount |
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| 195 | * *settlementDate* - the settlement date |
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| 196 | * *responseCode* - the response code |
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| 197 | * *authCode* - the bank authorization code if any |
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| 198 | * *transactionStatus* - indicate if it's success |
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| 199 | |||
| 200 | 7 | chin-yeh | h3. Code Snippets |
| 201 | 1 | chin-yeh | |
| 202 | <pre> |
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| 203 | <code class="JAVA"> |
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| 204 | 10 | chin-yeh | <% |
| 205 | PaymentResponse paymentResponse = MpayPaymentUtils.queryPaymentStatus(request.getParameter("order_no")); |
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| 206 | %> |
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| 207 | 7 | chin-yeh | </code> |
| 208 | </pre> |